Khoshfetrat, M., Davarpanah, S., & Keykha, A. (2018). Efficacy of intrathecal midazolam on enhancing analgesic effect of fentanyl in patients undergoing lower limb surgery. Biomedical Research and Therapy, 5(10), 2726-2732. https://doi.org/10.15419/bmrat.v5i10.487